Oops, it doesn't look like 'premature day' is a national day..

Other days

unicorn

Unicorn Day
kiss a brunette

Kiss A Brunette Day
cat girl

Cat Girl Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
ruby

Ruby Day
first love

First Love Day
blanket fort

Blanket Fort Day
me

Me Day
raise awerness of zeus

Raise Awerness Of Zeus Day
pick me

Pick Me Day